Illuminating device for microscopes
US7832894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Jun 27, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an illuminating device for microscopes, wherein the light source has, in particular, a white light illumination having total daylight spectrum and/or an excitation light source for fluorescent colors. The inventive illuminating device for a microscope consists of surface or spatially arranged light sources, which are connected to a control unit for generating any desired illuminating patterns and illuminating spectrums, and an illuminating optic to image these illuminating patterns on the object to be examined. The light sources consist of LEDs (11) which excite at least one luminescence color (14) which is adapted to the wavelength which is emitted by the LEDs (11). The LEDs (11) are arranged concentrically to the optical axis of the illuminating device, preferably, in or in the vicinity of the aperture diaphragm plane. The microscope illumination enables realization of flexible illumination structures and illumination spectrums for bright field, dark field, fluorescence, inclined and/or annularly-shaped illumination, and also white light illuminations having total daylight spectrum. Due to the advantages of the LEDs (economical, low power consumption, lon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.